It’s Trivia Tuesday folks!
Morning Glory Pool in the Upper Geyser Basin of Yellowstone National Park is indeed a glory to behold, no matter what the season. But, if you’ve seen (and photographed) this hot spring in different seasons, under different lighting conditions, you’ll notice that the colors don’t look quite the same – in the cooler months, they tend to be a little less bright and a little more murky.
When this pool was first discovered it was a brilliant blue, hence the name after a beautiful morning glory flower. People throwing trash, coins, rocks and logs into this pool over the years have caused a change in the water temperature (cooling it because all that trash has piled up around the vent and reduced hot water circulation) which in turn has caused the colors to change, allowing orange- and yellow-colored bacteria to thrive within the water. Add to that the subfreezing temps of the winter season (when this photo was captured), which in turn cool the surface water of the hot spring, and you get a murky look like you see here. It’s still a beautiful little spring, but the change in colors is mainly due to the extreme short-sightednes of humans. Sigh.
Copyright Rebecca L. Latson, all rights reserved.